'90s era PC recommendation.

Hi, Does anyone have any recommendations for a '90s era PC that has PCI and ISA slots? Ideally I'd like to have EISA slots too. ? At least I think that's what I want. I'm developing an itch to play with older networking equipment, Token Ring, FDDI, etc. and I suspect that a machine running '98 / NT 4, or a Unix / Linux from the late '90s would be a good candidate to mess with things. Obviously I'll need two devices to communicate. I may end up looking for an older Cisco router that supports the various interface types. Years ago I had a Compaq desktop that had PCI and EISA slots. I'm trying to re-acquire it from the friend that it went to. Does anyone have any Pro Tips on things to look for or avoid? ? One of the worries that I have about the aforementioned Compaq is that it used proprietary components (the keyboard connector looked like a PowerBook SCSI connector) that would be hard to replace if (read: when) a problem develops. I would greatly appreciate any tips / tricks / things to avoid. Thank you in advance. -- Grant. . . . unix || die